Structure and Principle of Capacitance Target Flow Meter

Abstract: The structure and principle information of capacitance target flow meter are provided by excellent flow meter and flow meter manufacturers and quotation manufacturers. Structure and principle of capacitive target flowmeter 1. Structure: WST series capacitive target flowmeter is mainly composed of measuring tube (shell), new capacitive force sensor (including blocking element), accumulative display and output parts. According to different media and working conditions. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the structure and principle of the capacitance target flowmeter. Structure and principle of capacitive target flowmeter 1. Structure: WST series capacitive target flowmeter is mainly composed of measuring tube (shell), new capacitive force sensor (including choke element), accumulative display and output parts. According to different media and working conditions, the appropriate capacitive force sensor must be selected. Therefore, the user provides accurate measurement objects and parameters, and the manufacturer selects the appropriate capacitive force sensor is the key to accurate measurement of the product. Its structure is shown in the figure below. 2. Working principle: When the medium flows in the measuring tube, the pressure difference generated by its own kinetic energy passing through the choke (electronic target) has a force on the choke. The magnitude of the force is related to the flow rate of the medium. is proportional to the square of , and its mathematical expression is as follows: F=CdAP·V2/2………………(1) In the formula: F——The force on the choke (Kg) Cd——Object drag coefficient A——Axial projection area of ​​the blocking piece to the measuring tube (mm2) P——Medium density under working conditions (Kg/m3) v——The average flow velocity of the medium in the measuring tube (m/s) The force F received by the blocking member (target) is transmitted to the capacitive force sensor through the rigidly connected transmission member (measuring rod), and the capacitive force sensor generates a voltage signal output: V =KF………………(2) In the formula: V——Capacitive force sensor output voltage (mV), K——proportionality constant, F——The force (Kg) of the blocking element (electronic target) is thus, the voltage signal can be obtained after pre-amplification, AD conversion and computer processing, and the corresponding instantaneous flow rate and cumulative total amount can be obtained. The above is the whole content of this article. , You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Structure and Principle of Capacitance Target Flow Meter'

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